Finding the Fourth Proportional to 257,382.12, 386,121.68 and 97,505.94
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Solution
The fourth proportional to 257,382.12, 386,121.68 and 97,505.94 is: 146,277.28
Step by Step Solution
- Step 1: Write the proportion equation
257,382.12 : 386,121.68 = 97,505.94 : x - Step 2: Convert to fraction form
257,382.12/386,121.68 = 97,505.94/x - Step 3: Cross multiply
257,382.12x = 386,121.68 × 97,505.94 - Step 4: Simplify right side
257,382.12x = 37,649,157,362.78 - Step 5: Solve for x
x = 37,649,157,362.78/257,382.12 - Step 6: Final answer
x = 146,277.28
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.